alexa The role of cerebral amyloid beta accumulation in common forms of Alzheimer disease.
Psychiatry

Psychiatry

Journal of Addiction Research & Therapy

Author(s): Gandy S

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Abstract For approximately 80 years following Alzheimer's description of the disease that bears his name, a gulf divided researchers who believed that extracellular deposits of the amyloid beta (Abeta) peptide were pathogenic from those who believed that the deposits were secondary detritus. Since 1990, the discoveries of missense mutations in the Abeta peptide precursor (APP) and the APP-cleaving enzyme presenilin 1 (PS1) have enabled much progress in understanding the molecular, cellular, and tissue pathology of the aggregates that accumulate in the interstices of the brains of patients with autosomal dominant familial Alzheimer disease (AD). Clarification of the molecular basis of common forms of AD has been more elusive. The central questions in common AD focus on whether cerebral and cerebrovascular Abeta accumulation is (a) a final neurotoxic pathway, common to all forms of AD; (b) a toxic by-product of an independent primary metabolic lesion that, by itself, is also neurotoxic; or (c) an inert by-product of an independent primary neurotoxic reaction. Antiamyloid medications are entering clinical trials so that researchers can evaluate whether abolition of cerebral amyloidosis can mitigate, treat, or prevent the dementia associated with common forms of AD. Successful development of antiamyloid medications is critical for elucidating the role of Abeta in common AD.
This article was published in J Clin Invest and referenced in Journal of Addiction Research & Therapy

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